Signal-lantern.



PATENTED NOV. 24, 1 903.

F. W. DRESSBL. SIGNAL LANTERN. APPLICATION FILED MAY 26, 1903.

2 SHEETS-SHEET 1.

N0 MODEL.

THE mums PETERS on, vnorcumu. wAsmNmoM, o. c.

No. 745,164. I

UNTTED STATES iatented November 24, 1903.

PATENT OFFICE.

FREDERICK W. DRESSEL, OF NEW YORK, N. Y.,ASSIGNOR TO THE DRESSEL RAIIIWAY LAMP WORKS, A CORPORATION OF NEW YORK.

SIGNAL-LANTERN.

SPEGIFIGATIONforming part of Letters Patent No. 745,164, dated November 24, 1903.

Application filed MayZB, 1903. Serial No. 158,771. (No model.) v

To all whom it mcty concern:

Be it known that I, FREDERICK W. Dans- SEL, a citizen of the United States, residing in the borough of Manhattan, city, county, and State of New York, have invented an Improvement in Signal-Lanterns, of which the following is a specification.

My invention relates to a signal-lantern adapted for use especially on railways and vessels, and the same relates particularly to the construction of the upper part of the lantern, with the object of providing more perfectly for the entrance of air without the disturbing efiect of wind, for the discharge of the heated products of combustion, and for the separation of the parts composing the structure for the purpose of cleaning.

I provide in combination with a lanternbody of usual construction a top connected therewith and in which are a seriesof circularly-arranged air-entrance apertures, an auxiliary chimney or tubular septum for the escape of the heated products of combustion, and parts connected therewith so placed with reference to the auxiliary chimney and top of the lantern that there is at least one annular chamber between the parts at said airentrance apertures receiving air and from which the air passes within the lantern-body to the flame. I prefer to employ two annulus-plates secured exteriorly to the said auxiliary chimney and fitting within the lanterntop, one or both of which may be perforated and one or both of which may assist in forming said annulus air-chamber. I also provide means for readily connecting and disconnecting the auxiliary chimney and connected parts to the top of the lantern, all of which are hereinafter more particularly set forth.

. In the drawings, Figure 1 is a vertical section at the upper portion' of the lantern-body and through the top. Fig. 2 is a sectional plan of the auxiliary chimney or tubular septum and the annulus-plates connected therewith removed from the top of the lantern. Fig. 3 is a sectional plan, and Fig. 4 an elevation at right angles to Fig. 3, representing a collar for securely connecting the auxiliary chimney to the top of the lantern. Figs. 1,

2; 3, and 4 refer to the same construction.

Figs. 5, 6, 7, 8, and 10 are vertical sections at the top of the lantern and through an auxiliary chimney, representing forms of my invention. Fig. 9 is a sectional plan of the parts shown in Fig. 8. Fig. 11 is a plan of the upper end of the parts shown in Fig. 10. Fig. 12 is an elevation at the upper end of the parts shown in Figs. 10 and 11, and Fig. 13 is a vertical section representing a modified form of the structure shown in Figs. 10, 11,

and 12.

arepresents the upper portion of the body of the lantern, which, by the way, is preferably formed of spun sheet metal.

12 represents the top of the lantern, gradually tapering in diameter and preferably secured permanently to the upper end of the body a, 5 representing a flange at the upper end of the top b, and c a cap connected by a hinge 2 to the top and at a point opposite to the hinge by a catch 3, which hinge and catch provide for swinging the cap, so that when the parts are separated they may be readily cleaned from dust or soot.

A series of air -entrance perforations or apertures 4 is arranged in the top Z) at or near the upper end. Figs. 7 and 10 show two rows of such perforations, while Figs. 5, 6, and 8 show but one row of perforations, it being understood that I do not limit myself to the number or precise arrangement or location of the series of apertures so long as they are in the top of the lantern near the upper end.

In Figs. 5, 6, 7, 8, and 10 the hinge-cap c has been omitted, as to include the same would be an unnecessary repetition, it being intended to employ such structure with the devices of each of these figures.

In the structures Figs. 1, 2, 5, 6, 7, 8, 9, 10, and 11 I have shown an auxiliary chimney or tubular septum. In Figs. 1 and 2 this auxiliary chimney or tubular septum d is cylindrical and tapering. It is provided with annulus-plates e f, secured to the outer surface thereof and horizontally disposed the one above the other and placed at such a distance apart that when the auxiliary chimney is in position in the top of the lantern the peripheries of these annulus-plates fit angular recessesin the conformation of the lantern-top, which form seats over the same. These annulus-plates are to be perforated, and as illustrations of such perforations I have shown the plate 6 with series of round holes or perforations and the plate f with elongated openings or slots placed radially; but I do not limit myself to the form of these perforations, nordo I limit myself to employing both plates perforated,as according to the location of the series of perforations or airentrance apertures 4 in the top of the lantern and the creation of the necessary airchamber so these plates are arranged.

In Fig. l the series of air-entrance apertures 4 come below the flange b and above the plate a, so that thereby there are formed two air-chambers, the one below the flange b and the other between the plates cf. This is the preferred form of the invention, because while the entering air will readily pass through the two chambers and the perforations of the two plates this construction makes it less possible for the influences of wind to get down into the body of the lantern to affect the flame.

The lower end of the auxiliary chimney or tubular septum d is in Fig. 1 shown as connected to a flaring sheet-metal ring Z. This form is also shown in Figs. 5 and 7; but this flaring portion may be substantially integral with the auxiliary chimney, as shown in Fig. 6, without in any respect departing from my invention. In Fig. 5 the flange Z1 at the up per end of the top I) is the equivalent of one of the annulus-plates, the annulus-platef being connected to the auxiliary chimney d in this figure, so that the air-chamber is in the upper part of the top below the flange b and above the perforated annulus-plate f. Substantially this same construction maintains in Fig. 7, except that in this case the annulus-plate f is not only perforated, but provided with attached tube-sections at the perforations, the same having the function of more perfectly directing the entering air passing from the air-chamber down into the body of the lamp. a

In Fig. 6 the auxiliary chimney or tubular septum d is shown with parallel sides and with plates ef, the plate 8 being imperforate and the plate f perforated, so that the air-chamber is formed between the said plates.

In Fig. 8 I have illustrated one perforated annulus-plate f as connected to the conical auxiliary chimney 61, so that in the device of this figure the air-chamber is formed above this platef and below the flanged top 11 In Fig. 10 I have shown two perforated annulus-plates e and f these forming the first or main air-chamber between the flange at the top b and the perforated annulus-plate e and the second air-chamber, like the structure, Fig. 1, between the perforated plates 6 and f.

As a means for holding the auxiliary chiming portion of the lantern body and top and for the purpose of forming between the annulus-plates connected to the auxiliary chimney and the surrounding portion of the lantern-top one or more of said air-chambers, I have shown in Figs. 1, 3, and 4 a collar g, independent of the adjacent parts, with an aperture to receive the upper end of the auxiliary chimney, with a wide base to rest upon the flange b at the upper end of the top, and with opposite notches and opposite horizontal recesses forming bayonet-slots 7 to receive opposite lugs 6 at the upper end of the auxiliary chimney, which lugs, with the insertion into the lantern of the auxiliary chimney, pass through the opposite vertical portions of said bayonet-slots and are turned into the horizontal portion of said bayonetslots, the same being strained and the auxiliary chimney tightened in position in the top of the lantern by the lugs 6 moving up the opposite inclined surfaces of the said collar. This same structure is adapted for use with the modified forms of my invention shown in Figs. 5, 6, and 7.

As a modification of the collar 9 I have shown in Figs. Sand 9 a collarh, which comes below the flange b at the upper end of the top I) within the top of the lantern, said .collar being made with oppositely-placed notches to receive the lugs 6, which lugs then as the auxiliary chimney is turned move into the spaces between the under surface of the flange b and the upper surface of the collar h, and so the auxiliary chimney is held in position. As a further modification of this engaging device I have shown in Figs. 1O, 11, and 12 two flanged segments 11, oppositely placed and secured to the upper surface of the flange b of the top, the holding and clamping action being formed substantially the same in the modified form of these figures with reference to the auxiliary chimney and the lugs carried thereby as are the structures hereinbefore described. In Fig. 13 a form of this invention is shown in which the flange b at the upper end of the top is turned upward, so as to produce segmental flanges 7a integral with the sheet metal of the top 5 In Figs. 1, 5, and 7 the lower end of the auxiliary chimney or tubular septum d d d is shown as provided with a flaring skirt Z, separate from but connected thereto. This skirt Z is preferably of spun sheet metal, with the walls at the upper part parallel and at the lower part flaring, as a skirt, and preferably with a bead at the intersection where said skirt is securely fastened to the turnedover lower end of the auxiliary chimney, the upper end being in turn connected to the under surface of the lowermost perforated annulus-plate f, f, orf This is a convenient construction that has the effect of stiffening the parts and so strengthening the same.

This device is exceedingly simple and efney ortubularseptum in position in the taperi fective. The parts are readily held in position and as readily separated for the purpose of cleansing.

I claim as my invention 1. In asignal-lantern, the combination with the lantern-body and tapering metal top having a series of air-entrance perforations circularly arranged and an open center, of a removable auxiliary chimney or tubular septum adapted to be received in the top and at its upper end to pass through the open center, devices connected to the auxiliary chimney and coacting devices connected to the top of the lantern for connecting the auxiliary chimney to the top of the lantern and holding the same in position, and at least one perforated annulus-plate secured to the outer surface of the auxiliary chimney and coming below the plane of the series of air-entrance perforations circularly arranged, whereby an air-entrance chamber is formed above the said perforated annulus-plate and between the same and the upper end of the lanterntop.

2. Inasignal-lantern, the combination with the lantern-body and tapering metal top having a series of air-entrance perforations circularly arranged and an open center, of a removable auxiliary chimney or tubular septum adapted to be received in the top and at its upper end to pass through the open center, means connected respectively to the up-' per end of the auxiliary chimney andlanterntop for effecting an engagement and for holding'the auxiliary chimney in a fixed relation to the lantern-top, and two annulus-plates surrounding the auxiliary chimney and fixed thereto at a predetermined distance apart and arranged so as to form at least one airentrance chamber in the upper part of the lantern adjacent to the series of air-entrance perforations.

3. In a signal-lantern, the combination withthe lantern-body and tapering metal top having a series of air-entrance perforations circularly arranged and an open center, of a removable auxiliary chimney or tubular septum adapted to be received in the top and at its upper end to pass through the open center, means connected respectively to the upper end of the auxiliary chimney and lanterntop for effecting an engagement and for holding the auxiliary chimney in a fixed relation to the lantern-top, and two annulus-plates both perforated, surrounding and secured to the auxiliary chimney at a predetermined distance apart so as to form in the upper end of the lantern adjacent to the series of airentrance perforations atleast one air-entrance chamber.

4:. 1n asignal-lantern, the combination with the lantern-body and tapering metal top having a series of air-entrance perforations circularly arranged, a notched flange at the upper end, and an open center, of a removable auxiliary chimney or tubular septum adapted to be received in the top and at its upper end to pass through the open center, at least one perforated annulus plate surrounding and secured to the auxiliary chimney and adapted in the upper part of the lantern to form an air-chamber adjacent to the series of air-entrance perforations, lugs secured to the auxiliary chimney at the upper end and at opposite points, and adapted to pass through the notches in the flange at the upper end of the lantern-top, and a device associatedwith and at the upper end of the lantern-top engaged by the said lugs, so that when the auxiliary top is turned it may be clamped in position.

5. In a signal-lantern, the combination with the lantern-body and tapering metal top having a series of air-entrance perforations circularly arranged and an open center, of a removable auxiliary chimney or tubular septum adapted to be received in the top and at its upper end to pass through the open center, at. least one perforated annulus-plate surrounding and secured to the auxiliary chimney and adapted in the upper part of the lantern to form an air-chamber adjacent to the series of air-entrance perforations, lugs secured to the auxiliary chimney at the upper end and at opposite points, a notched flange and a collar placed adjacent to the upper end of the lantern-top and having opposite inclined surfaces and opposite perforations through which the lugs of the auxiliary chimney pass and with which inclined surfaces said lugs are brought into contact by the turning of the auxiliary chimney to clamp the same in position in the top of the lantern.

6. In a signal-lantern, the combination with a lantern-body and tapering metal top having a series of air-entrance perforations circularly arranged and an open center, of a removable auxiliary chimney or tubular septum adapted to be received in the top and at its upper end to pass through the open cen ter, means for securing the same removably to the top, at least one perforated annulusplate secured to the outer surface of the auxiliary chimney and coming below the plane of a series of air-entrance perforations circularly arranged,whereby an air-entrance chamber is formed above said perforated annulusplate and between the same and the upper end of the lantern-top, and askirt connected to and forming a flaring axial continuation of the said auxiliary chimney.

7. In a signal-lantern, thecombination with a lantern-body and tapering metal top having aseries of air-entrance perforations circularly arranged and an open center, of a removable auxiliary chimney or tubular septum adapted to he received in the top and at its upper end to pass through the open cen- -ter, means for securing the same removably to the top, at least one perforated annulusplate secured to the outer surface of the auxiliary chimney and coming below the plane of the series of air-entrance perforations circularly arranged, whereby an air-entrance ICC chamber is formed above the said perforated annulus-plate and between the same and the upper end of the lantern-top, and askirt preferably of spun sheet metal surrounding the lower end of said removable auxiliary chimney and having apart with parallel walls continuing upward from the lower end of said auxiliary chimney to the under surface of the lowermost perforated annulus-plate, and a part of flaring form as an axial prolongation 10 or continuation of the said auxiliary chimney. Signed by me this 21st day of May, 1903.

FREDERICK W. DRESSEL. Witnesses:

GEO. T. PINCKNEY, S. T. HAVILAND. 

